ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The constant-ductility seismic demand spectra can provide high-sight of seismic damagemechanism of inelastic structures under the earthquake. And in the displacement-based seismicdesign, the constant-ductility seismic demand spectra are very useful for the preliminary design ofnew structures where the global displacement ductility capacity is known, which can provide therequired inelastic lateral strength of new structures from the required elastic lateral strength. Anin-depth investigation of damping effect on constant-ductility seismic demand spectra of inelasticstructures is presented in this paper. A statistical study is performed of inelastic response computedfor different damping ratio SDOF systems with different levels of lateral yielding strength required tomaintain the given displacement ductility when subjected to a large number earthquake accelerations.It is concluded that the damping effect on constant-ductility seismic resistance spectra is rathercomplex. It depends on not only site conditions but also the structural period. Finally, results fromnon-linear regression analysis are presented that provide a simplified expression to be used toapproximately quantify the damping effect
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.348-349.649.pdf
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